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NexStar AP Graduates Images and Discussions

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#1626 Maverick199

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Posted 18 November 2012 - 06:13 AM

Crop of above.

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#1627 Tel

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Posted 18 November 2012 - 06:58 AM

Hi Haseeb,

I am very much in sympathy with you. It's also been somewhat of a rare event this year for me to be able to get out and do something under good skies, (although mine are nowhere near as bad as yours appear to be) !

As to the image, it has obviously suffered accordingly but perhaps not all was lost, (see attached). Not good but perhaps retrieved to a tolerable degree ?

Don't let the weather get you down. I have it on good uthority that it WILL change ! :lol:

Best regards,
Tel

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#1628 Maverick199

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Posted 18 November 2012 - 07:20 AM

Definitely better Tel. I tried using that 'lasso tool' you mentioned early on and was able to 'inverse' and do the background darkening. However, that left the main object some scars. You seem to have managed nicely though there is a bit of scarring effect which I guess can't be helped. Thanks. :)

I only hope weather improves before my next attempt.

#1629 Tel

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Posted 18 November 2012 - 07:50 AM

Hi Haseeb,

Indeed, I used the lasso and the inverse to tackle both the background and the Pleiades separately, but in addressing the whole M45 cluster, I did not make one single loop around it but broke it up using three loops. There seemed to be more control by this means.

To do this, if you're not acquainted with the technique, put a lasso loop around whatever object or portion of an object it is necessary to do so, and then, if you want more, shall we call them "sub-loops", hold down the shift key and you should see a little plus sign (+) appear at the side of the lasso symbol. This will enable you to place as many loops around as many objects at any time as you may require.

Hoping for good weather too !

Best regards,
Tel

#1630 haytor

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Posted 18 November 2012 - 08:06 AM

Hi Haseeb, i feel for you and share your problems, a very brave attempt on your part given the conditions you were required to work under, and yes i also agree that desperation drives us even when things are bad, so saying, i spent over 5 hours in my obs last night, freezing cold and with a WNW breeze bringing in moist air,which prevented me from getting any worth while captures, so that makes me either dedicated to my hobby, or just plain nuts :bangbangbang:

best regards,

Tom.

#1631 Maverick199

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Posted 18 November 2012 - 08:54 AM

Hi Tel, I tried that and was able to put small loops around stars. While I couldn't do much with this image, you sure have provided for me to learn a useful technique which will help me with a lot of things whilst processing. More than anything else, I am happy I learnt to use the lasso tool and you made it possible. :jump: :bow:

Hi Tom, dedicated with a bit of nuttiness on our parts would be my guess. :lol: Thank you for understanding the issues we deal with and let's hope for better weather and clear skies. :grin:

#1632 milby

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Posted 19 November 2012 - 02:47 PM

I appreciate your efforts, Tel. I tend towards less aggressive processing because I think it's a fine line (like the galaxies with cartoonish multiple colors you see with some Pixinsight users). Not that you cross that line - but I do whenever I get too stretch-happy.

#1633 milby

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Posted 19 November 2012 - 07:45 PM

Tried a mosaic of shots from Friday night to try and capture more of M31. Still not enough to see all of this monster. Each of the three images was 2000s at F2. Processed in Pixinsight.

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#1634 haytor

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Posted 20 November 2012 - 07:00 AM

That Milby, is a wonderful mosaic image of M31, very nicely processed too.Lots of detail to be seen and a nice tight core. :bow: :bow: :bow:

best regards,

Tom.

#1635 Maverick199

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Posted 20 November 2012 - 12:19 PM

That's a beautiful, beautiful image Milby, well done.

#1636 Peter9

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Posted 20 November 2012 - 12:47 PM

Outstanding image Milby.

Thanks for posting.

Regards. Peter.

#1637 Skip

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Posted 20 November 2012 - 03:55 PM

Wow, Milby. Great capture of M31, 32, and a piece of 110. People have been getting fantastic results at f2 with Hyperstar! M31 IS a monster, isn't it?

#1638 Arthur Dent

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Posted 21 November 2012 - 12:30 PM

Wow Milby

What an image!

Posted Image

Art

#1639 ghataa

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Posted 22 November 2012 - 09:20 PM

Hi All,

It's been a crazy few weeks and I have a lot to catch up on but I was able to spend an evening doing a little AP.

I targeted M45 with my SV 90 mm apo triplet using a TV 0.8x focal reducer/field flattener yielding a FOV of 504 mm. More appropriate than the 630 mm native focal length of the telescope in my opinion

The image is comprised of 25 300s subs at ISO 400 using a modified Canon T3i on a CG5. Also used was the clip-in light pollution filter.

Thanks for looking!

George

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#1640 Maverick199

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Posted 23 November 2012 - 04:19 AM

Wow, very impressive. Did you try stretching it more? You can still afford some 'red' in your background if some more nebulosity can be pulled out. Either way, stunning.

#1641 Tel

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Posted 23 November 2012 - 04:29 AM

My apologies in beimg late to congratulate but superb images from both you, Milby, and you George. :bow: :bow:

Great mosiacking skill, Milby, and a perfect balance of colour, George, particularly between the cyan blue/green of the surrounding nebulosity and that one red star ! :waytogo:

Best regards,
Tel

#1642 haytor

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Posted 23 November 2012 - 07:38 AM

Lovely capture George, good to see you posting again, thats a cracking shot,hope you can produce more in the near future,keep em coming, :bow: :bow: :like:

best regards,

Tom.

#1643 Peter9

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Posted 23 November 2012 - 11:29 AM

Another fine image George.

Thanks for posting.

Regards. Peter.

#1644 ghataa

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Posted 23 November 2012 - 12:08 PM

Thanks Tel, Tom and Peter. It felt good to get out under the stars again even with the bright moon. The CLS filter does a nice job even under suboptimal conditions.

Haseeb, thanks for the comments. I stretched the data a bit more as you suggested and posted below.

Best,

George

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#1645 Maverick199

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Posted 23 November 2012 - 12:38 PM

I like this one as it shows much more nebulosity all over while maintaining the seven sisters halo. :grin:

#1646 Greyhaven

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Posted 23 November 2012 - 03:19 PM

Yes, you've done a great job in that process of M45. That really showcases its' beauty.
Thanks for sharing.
Be Well
Grey

#1647 Arthur Dent

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Posted 23 November 2012 - 04:34 PM

Sorry George, I prefer #1

As was said by the Birthday Boy, that's a cracking shot!

Art

#1648 ghataa

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Posted 23 November 2012 - 05:48 PM

In addition to M45, I spent some time last night on the beautiful horsehead nebula.

3 hrs using modded T3i, ISO 400, 7 min subs at 504mm with my SV apo triplet refractor on the CG-5 and guided with the Orion mini-guider.

Thanks for looking!

Best,

George

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#1649 hopskipson

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Posted 23 November 2012 - 06:09 PM

Stunning images :bow:!

James

#1650 milby

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Posted 24 November 2012 - 12:30 AM

Gorgeous images, George. Just stunning! :bow:






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